Which factor is the primary control of productivity in aquatic systems?
A)temperature
B)precipitation
C)light
D)salinity

Question

Quizplus · Accepted Answer

Light is the primary control of productivity in aquatic systems. This is because photosynthesis, the process by which plants and algae produce organic matter, is dependent on light. Without sufficient light, photosynthesis cannot occur and productivity is limited. Temperature, precipitation, and salinity can all have secondary effects on productivity, but light is the primary factor.

Which Factor Is the Primary Control of Productivity in Aquatic